Condensate and air removing apparatus.



R. SUCZEK. V

CONDENSATE AND AIR REMOVING APPARATUS.

' APPLICATION FILED MAH, new.

1,266,726. 6 Patented May 21,1918.

u b X i x R Z F3. 7 Q QMW 8 p &

gn'uenl'p't removed by suitable denser, said CONDENSATE AND AIR REMOVING APPARATUS.

Specification of Letters Patent.

Patented May 21, 1918.

Application filed May 7, lifl'l. Serial No. 167,061.

To all whom it may concern:

Be it known that I, ROBERT SUozEK, a subject of the Emperor of Austria-Hungary, residing in the city of Philadelphia, county of Philadelphia, and State of Pennsylvania,

have invented certain new and useful Improvements in Condensate and Air Removing Apparatus, of which the following is a specification. Q

My inventibri relates to apparatus for removing condensate and air or other uncondensable gas or vapor from either a surface or a jet condenser, or from kindred apparatus.

My invention resides in apparatus of the character referred to in which a part of. the condensate; preferably the greater part, is

pumping means, preferably a centrifugal pump, and the remainder of the condensate is removed by pumping means, preferably of centrifugal type comprising an impeller structure serving the double purpose of removing condensate and of removing air or vapor from the conimpellcr structure having vanes and passages for operating upon the con densate and additional vanes and passages for removing or assisting in removing the air or vapor from the condenser.

A further feature of my invention resides in the employment of ejector apparatus for removin air or uncondensable gases and vapors IO-III a condenser, the combining tube or difluser of the ejector apparatus having a jacket through which is assed cool ing or injection water which a r passage through the jacket is delivered back into the condensenfor cooling the air or vapors to be removedby the ejector.

For an illustration -of one of the various forms my invention -may take, reference is to be had to the accompanying drawing, which is a vertical sectional view, some parts in elevation, through a condenser and associated parts embodying my invention.

Referring to the drawing, J is the body of a jet condenser which receives through the opening K the steam or other vapor to be condensed. Surrounding the body J is the water distribution chamber C receiving the cooling or injection water through the water supply connection W. In the wall of the body J is formed a series of nozzles N through which the cooling water is'injected into contact with the steam entering at K. The steam cornin into contact with the cooling water is condensed into water, and the in ection water and. condensate fall through the cone, guide passage or diffuser D into the bottom of the body J where it rises to a level, as 11 maintained a ove the uppermost level of the suction of the impellers I and I of the submerged centrifugal pumps P and P These impellers are secured upon and driven by the shaft S rotating in the bearings 13, B and driven by any suitable motor, as a steam turbine or electric motor, not shown. The impeller I dischar es into the volute discharge casing V which delivers to any suitable point outside of the apparatus. There may be used in lieu of pump P a plurality of pumps P or pump structure comprising a plurality of impellers I.

The impeller I removes part of the entire liquid accumulating in the bottom of the body J, and for the sake of simplicity such liquid is called condensate, though it is a combination of injection water and condensate. Preferably the impeller I removes the greater part of such condensate, while the lmpeller I removes a smaller part and delivers the same into the volute discharge casing V from which'it is delivered to any suitable point.

is an ejector having one or more 11ozzles n communicating with the space a to which any suitable motive fluid under pressure, for example steam, is conducted through the passage 6. Associated with the nozzle n is the combining tube or diffuser d communicating with the chamber 0 which communicates through the connection e with the inside of the condenser body J with the space below or around the diffuser D. Surrounding the diffuser d is a jacket space f connected by pipe (I with the injection water chamber C and also spray nozzle orrose 2' body J. The diffuser d connects with the pipe j through the va we I: with the second ejector E which may be similar to the ejector E or of any other suitable type. The pipe 7' communicates also through the valve m with the chamber 0 oommumcating with a second part of the impeller structure within the condenser by pipe h with the of pump P, through vanes 41 forming passages the tubular extension 72 forming a part of and rotating with the impeller structure, the walls of the chamber 0 and the packing q forming a stuffing) box for the tubular extension pp The to ular member p forms the suction .oIpening or 1nlet of the impeller structure 2 having the delivering at-their outer ends into the passages between the vanes 12, of the impeller structure I whose suctiomo ening is at a into which s delivered con ensate from the condenser body J.

The operation is as follows:

First. a vacuum within the condenser body J is roduced by closing the valve an, opening t e valve is and setting both ejectors E and E into operation, whereupon the ejector E withdraws air or uncondensable gases or vapors from within the condenser J, comresses them more or less and delivers them in such compressed condition through the pipe and valve m to the second ejector E whi further com resses them to atmosheric pressure or igher. This operation is continued until a desired degree of vacuum within the condenser J is attained. The shaft S is brought up to running speed. Thereupon water is delivered through the connection W into the chamber C and passes through the orifices or nozzles N in a plurality of streams falling through the dilfuser 1) into the bottom of the body J submerging the pum P and P,, that is, the water rises to a leve above the top or uppermost point of their suction orifices. Thereupon the steam to be condensed is admitted through the passage K and in coming into contact with the in'ection water is condensed thereb and falls with the injection water into t e bottom of the body J.

Since the operation of the two ejectors E and E, in series would consume lar e quantities of steam the desired degree 0 vacuum may nevertheless be attained with less expenditure of energy by opening the valve m and closing the valve is and discontinuing supply of motive fluid to the second ejector E hen there is received into the chamber 0 from the ejector E both the motive fluid from the ejector E and the entrained gases or vapors withdrawn from the condenser J. These pass through the tubular extension p into the impeller 2 of the pump-P and are acted upon centrifugally and raised in pressure and thrown outwardly and delivered into the spaces between the vanes '0 of the impeller I and the condensable'vapors are condensed in coming into contact with the intojhe discharge casing V and delivered to anymuitable point, and the air separated in w hnown manner.

zconstructlon the pump P removes preferably the larger part of, the

condensate passing through the impeller I, The mixture of water and air is delivered neeepac condensate of the condenser J, and a smaller part of it is removed by the impeller I which assists in condensing the vapors delivered b the impeller I and assists also in raisin t e pressure of any air orgases remov from the condenser and delivered by the ejector E.

In this way only a single stage ejector need be employed with relatively smaller steam consumption, and the additional compression of the air or gases removed from the condenser J is eflr'ected by the second pump P, at greater economy than if the ejectors E and E, were both used.

It is further of advantage to cool the air or gases removed from the condenser J inasmuch as when cooled their volume is less, requiring correspondingly less motive fluid in the e ector E. For this purpose part of the injection water is admitted from the chamber G throu h the pipe 9 into the water jacket 7 and felivered from the latter through the pipe 1:. to thespray nozzle or rose 2' fromwhich the water is s rayed upwardly into contact with the air or gases just as they leave the condenser J and suitably cools them. By interposing the cooling jacket 7 this same cooling water assists in cooling the diffuser d, as ecially in the vicinity of its throat, to t ereby reduce the amount of work necessary to bev erformed by the motive fluid of the ejector E in efiecting compression drawn from the condenser J. While the motive fluid and gases are undergoing compression in the diffuser (1 they tend to rise in temperature or evolve heat due to the compressing action, and the effect of water in the jacket I prevents such rise in temperature and so reduces the amount of work necessary to be performed by the motive fluid or, in other words, makes it possible to further reduce the amount of motive fluid.

It will be understood that for either or both of the ejectors E and E may be employed any other suitable type of ejector; or in. lieu of them or either of them may be used other means for removing uncondensable gas or va or from the condensers.

Structure 0 the character embodied in the pump P herein, and such structure in combination with further structure as the ejector apparatus, and such combination in cooperation with a condenser, are not herein claimed, but are claimed in my co-pending application Serial Number 139,985, filed December 30, 1916.

What I claim is:

1. The combination with a jet qondenser, of a plurality of pumps each directly removing water therefrom, one of said pumps being a Wet air pump for removing air and water from said condenser.

2. The combination with a condenser, of a plurality of pumps each removing water of the gases or vapors withtherefrpm independently of the other, one of said pumps being a centrifugal pump,impeller structure in said centrifugal pump comprising parts respectively removing air and water from saidcondenser.

3. The combination with a. jet condenser, of a plurality of pumps each directly removing water therefrom, one of said pumps being a centrifugal pump, aiid m ans whereby the water acted upon by said pump withdraws air from said condenser.

4. The combination with a condenser, of a plurality of pumps each directly removing w ater therefrom, one of said pumps being a centrifugal pump, and an ejector removing air from said condenser and delivering it to said centrifugal pump.

5. The combination with a condenser, of a plurality of pumps each removing water therefrom, one of said pumps being a centrifugal pump. said centrifugal pump comprising a plurality of cofiperating inpeller structures, One of said structures removing water from said condenser, and a second of said structures removing air from said condenser.

6. The combination with a condenser. of a plurality of pumps each removing water therefrom, one of said pumps being a contrifugal pump. an ejector for removing air from said condenser, said centrifugal pump comprising a plurality of cooperating impeller structures, one of said structures removing water from said condenser, and another of said structures receiving air from said ejector.

7. "lhecoinbination with a condenser, of a plurality of centrifugal pumps each directl-y removing water therefrom, a common shaft driving the. impeller structures of said pumps, the impeller structure of one of said pumps removing air and water from said comlenscr.

8. l'ho combination with a condenser, of an ejector for removing air therefrom, a cooling jacket surrounding the diffuser of said ejector, means for delivering cooling water into said jacket. and a connection from said jacket delivering the cooling watcr into said condenser.

9. The combination with a condenser. of an cjrclor for removing air therefrom. a cooling jacket for the dill'uscr of said ejector. means [or deliveringcooling water into said jacket. a spraying dcvicc within said condcnsrr near the ollllcl; for the air delivered to said i-jcclor. and a connection delivering water from said jacket to said spraying device.

lit. The combination with a jet. condenser comprising a dist rihntcr for injection water and means forming a guide passage below the same, of an ejector for returning air from said condcnsi-r. a cooling jackcl l'or said ejector, means for delivering moliug last named water from said distributor into said jacket, and a connection from said jacket delivering the cooling water into said condenser below said guide passage forming means.

'11. The combination with a jet condenser comprising a distribute-r for injection water and means forming a guide passage below the same, of an ejector for removing air from said condenser having an air connection therewith below said guide passage forming means, a cooling jacket for said ejector, means for delivering "cooling water from said distributer into said jacket, a spraying device within said condenser near the air connection to said ejector, and a connection delivering water from said jacket to said spraying device.

12. The combination with a condenser, of a plurality of pumps each removing water from the vacuum space thereof, one of said pumps comprising a submerged water removing impeller and an air removing im peller having an independent suction having a connection with the vacuum space of said condenser, said second named impeller delivering air into said first named impeller.

13. The combination with a condenser, of a plurality of submerged centrifugal pumps each directly removing water from said condenser, one of said pumps having water and air removing impellers havin independent sanctions, and an air connection from said condenser to the suction of said air removing impeller.

14'. The combination with a condenser, of a plurality of submerged centrifugal pumps each removing water from said condenser, one of said pumps having water and air removing impellers having independent suctions, and an air connection from said condenser to the suction of said air removing impeller, said air removing impeller delivering air from said condenser into said water removing impeller.

15. The combination with acondenser, of a plurality of submerged centrifugal iunps each removing water from said com enser, one of said pumps having water and air removing impellers having independent suctions, and an air connection from said condenser to the suction of said air removing impelle said air removing impeller deliver ing air into said water removing impeller.

.16. The combination with a condenser, of a plurality of submerged centrifugal pumps each directly removing water frou salil coudcnscr. one of said pumps having water aiul air removing impellers having independent suctions. aml means for removing air from said'comlcnscr and delivering it at higher pressure into the suction of said air removin" impeller.

l7. 'lho-coiuhimilion with a jet condenser, of a pluralily of suluucrgcd centrifugal pumps each rcmoviug water from said condenser, one of said pumps dispo ed within condenser above the water therein to the the body of said condenser, another of said suction of said air removin impeller. pumps comprising a water removing im- In testimony whereof have hereunto 10 peller whose suction is in communication affixed my signature this 3rd day of May, 5 with the water space of said condenser, an 1917.

air removing impeller having an independ- I ent suction, and an air connection from said ROBERT SUCZEK. 

